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Can echinacea help with a cold?

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Studies have had mixed results on this. Some evidence suggests that echinacea may prevent the common cold or help as a treatment. Others, many of them small, have found that it may reduce the length of a cold and the severity of its symptoms. But two large clinical trials found no benefits at all.

SOURCES:

Longe, J., ed. , second edition, 2004. The Gale Encyclopedia of Alternative Medicine

Memorial Sloan-Kettering Cancer Center web site: "About Herbs: Echinacea."

National Center for Complementary and Alternative Medicine web site: "Herbs at a Glance: Echinacea."

Natural Medicines Comprehensive Database web site: "Echinacea."

Natural Standard Patient Monograph: "Echinacea."

Reviewed by Melinda Ratini on April 16, 2019

SOURCES:

Longe, J., ed. , second edition, 2004. The Gale Encyclopedia of Alternative Medicine

Memorial Sloan-Kettering Cancer Center web site: "About Herbs: Echinacea."

National Center for Complementary and Alternative Medicine web site: "Herbs at a Glance: Echinacea."

Natural Medicines Comprehensive Database web site: "Echinacea."

Natural Standard Patient Monograph: "Echinacea."

Reviewed by Melinda Ratini on April 16, 2019

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What are the different types of echinacea?

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